1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
|
// Copyright 2022 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include "components/reporting/metrics/periodic_collector.h"
#include <memory>
#include <optional>
#include <string>
#include <utility>
#include "base/check.h"
#include "base/functional/bind.h"
#include "base/location.h"
#include "base/metrics/histogram_functions.h"
#include "base/sequence_checker.h"
#include "base/task/sequenced_task_runner.h"
#include "base/time/time.h"
#include "components/reporting/client/report_queue.h"
#include "components/reporting/metrics/collector_base.h"
#include "components/reporting/metrics/metric_rate_controller.h"
#include "components/reporting/metrics/metric_report_queue.h"
#include "components/reporting/metrics/metric_reporting_controller.h"
#include "components/reporting/metrics/sampler.h"
#include "components/reporting/proto/synced/record_constants.pb.h"
namespace reporting {
PeriodicCollector::PeriodicCollector(Sampler* sampler,
MetricReportQueue* metric_report_queue,
ReportingSettings* reporting_settings,
const std::string& enable_setting_path,
bool setting_enabled_default_value,
const std::string& rate_setting_path,
base::TimeDelta default_rate,
int rate_unit_to_ms,
base::TimeDelta init_delay)
: CollectorBase(sampler),
metric_report_queue_(metric_report_queue),
rate_controller_(std::make_unique<MetricRateController>(
base::BindRepeating(&PeriodicCollector::Collect,
base::Unretained(this),
/*is_event_driven=*/false),
reporting_settings,
rate_setting_path,
default_rate,
rate_unit_to_ms)),
reporting_controller_(std::make_unique<MetricReportingController>(
reporting_settings,
enable_setting_path,
setting_enabled_default_value)) {
if (init_delay.is_zero()) {
SetReportingControllerCb();
return;
}
CHECK(base::SequencedTaskRunner::HasCurrentDefault());
base::SequencedTaskRunner::GetCurrentDefault()->PostDelayedTask(
FROM_HERE,
base::BindOnce(&PeriodicCollector::SetReportingControllerCb,
weak_ptr_factory_.GetWeakPtr()),
init_delay);
}
PeriodicCollector::PeriodicCollector(Sampler* sampler,
MetricReportQueue* metric_report_queue,
ReportingSettings* reporting_settings,
const std::string& enable_setting_path,
bool setting_enabled_default_value,
const std::string& rate_setting_path,
base::TimeDelta default_rate,
int rate_unit_to_ms)
: PeriodicCollector(sampler,
metric_report_queue,
reporting_settings,
enable_setting_path,
setting_enabled_default_value,
rate_setting_path,
default_rate,
rate_unit_to_ms,
base::TimeDelta()) {}
PeriodicCollector::~PeriodicCollector() = default;
void PeriodicCollector::OnMetricDataCollected(
bool is_event_driven,
std::optional<MetricData> metric_data) {
CheckOnSequence();
CHECK(metric_report_queue_);
if (!metric_data.has_value()) {
base::UmaHistogramExactLinear(
PeriodicCollector::kNoMetricDataMetricsName,
static_cast<int>(metric_report_queue_->GetDestination()),
Destination_ARRAYSIZE);
return;
}
if (is_event_driven) {
CHECK(metric_data->has_telemetry_data());
metric_data->mutable_telemetry_data()->set_is_event_driven(is_event_driven);
}
metric_data->set_timestamp_ms(
base::Time::Now().InMillisecondsSinceUnixEpoch());
metric_report_queue_->Enqueue(std::move(metric_data.value()));
}
bool PeriodicCollector::CanCollect() const {
return reporting_controller_->IsEnabled();
}
void PeriodicCollector::StartPeriodicCollection() {
CheckOnSequence();
// Do initial collection at startup.
Collect(/*is_event_driven=*/false);
rate_controller_->Start();
}
void PeriodicCollector::StopPeriodicCollection() {
CheckOnSequence();
rate_controller_->Stop();
}
void PeriodicCollector::SetReportingControllerCb() {
reporting_controller_->SetSettingUpdateCb(
base::BindRepeating(&PeriodicCollector::StartPeriodicCollection,
base::Unretained(this)),
base::BindRepeating(&PeriodicCollector::StopPeriodicCollection,
base::Unretained(this)));
}
} // namespace reporting
|
